• Own end-to-end Oracle database performance engineering: AWR/ASH analysis, wait event tuning, SQL trace, Statspack, and optimizer plan management. • Design and execute data migration strategies for consolidating EDB, IVM, and VistA REE data into the modernized ES, ensuring data integrity, lineage, and auditability. • Develop and optimize PL/SQL, partitioning strategies, indexing, and materialized views for high-volume eligibility and enrollment workloads. • Implement GoldenGate and/or native Oracle replication strategies to support phased cutovers, near–zero downtime transitions, and rollback plans. • Harden database platforms to VA standards (FedRAMP, FISMA, IRS 1075, HIPAA): encryption at rest (TDE), in-transit (SSL/TLS), key rotation, and privileged access controls. • Engineer backup/recovery and DR patterns (RMAN, Data Guard) with validated RPO/RTO; conduct routine failover testing and RCA following incidents. • Establish observability baselines using Splunk/Microsoft Azure Monitor; publish performance SLOs and weekly capacity reports to the Product Lifecycle Team. • Collaborate with DevSecOps to integrate schema migrations into CI/CD (Liquibase/Flyway), automate change promotion, and enforce configuration management. • Support database security operations: auditing, least privilege, separation of duties, STIG alignment, and vulnerability remediation. • Lead data quality and reconciliation activities post-migration; define controls for duplicates, referential integrity, and cross-system consistency. • Provide Tier 3 escalation for production incidents; perform query rewrites, plan baselines, and emergency performance triage during peak loads. • Contribute to capacity planning and cloud architecture decisions for VAEC-hosted Oracle workloads; right-size compute/storage and IOPS.